Advertising display sign holder



FIG. 1 is a front perspective view of an advertising display sign holdershowing my new design, with the broken line showing for illustrativepurposes only and forming no part of the claimed design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a left side elevatioinal view thereof, of which the right sideis a mirror image;

FIG. 5 is a bottom plan thereof; and,

FIG. 6 is a top plan view thereof.

The ornamental design for a advertising display sign holder, as shownand described.